How severe is CVE-1999-1394?

CVE-1999-1394 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-1999-1394 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1394?

CVE-1999-1394 affects Bsd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1394?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-1394 published?

CVE-1999-1394 was published on 1999-07-02 and last updated on 2026-06-16.

CVE-1999-1394

CVE-1999-1394 is a low-severity vulnerability in Bsd with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Bsd
Published: 1999-07-02
Last modified: 2026-06-16

Description

BSD 4.4 based operating systems, when running at security level 1, allow the root user to clear the immutable and append-only flags for files by unmounting the file system and using a file system editor such as fsdb to directly modify the file through a device.

Frequently asked questions

What is CVE-1999-1394?: BSD 4.4 based operating systems, when running at security level 1, allow the root user to clear the immutable and append-only flags for files by unmounting the file system and using a file system editor such as fsdb to directly modify the file through a device.
How severe is CVE-1999-1394?: CVE-1999-1394 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-1999-1394 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1394?: CVE-1999-1394 affects Bsd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1394?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1394 published?: CVE-1999-1394 was published on 1999-07-02 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:bsd:bsd:4.4:*:*:*:*:*:*:*

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